Shelly Negrotti, who snapped a terrifying photo of the shark tailing a kayaker, recalls the Jaws-like scene that unfolded as people scurried out of the water. "It was just like a chain reaction up and down the beach," Negrotti said. "We were all saying ‘Get in!' to the paddler as the shark was getting closer and closer."

Shark sighting have increased across the Cape in recent years as more and more seals — their prey of choice — have taken to calling the area home.